321111131001 has 8 divisors (see below), whose sum is σ = 428504672544. Its totient is φ = 213895838400.

The previous prime is 321111130999. The next prime is 321111131021. The reversal of 321111131001 is 100131111123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 321111131001 - 2¹ = 321111130999 is a prime.

It is a super-2 number, since 2×321111131001² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321111131021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44558031 + ... + 44565236.

It is an arithmetic number, because the mean of its divisors is an integer number (53563084068).

Almost surely, 2^321111131001 is an apocalyptic number.

It is an amenable number.

321111131001 is a deficient number, since it is larger than the sum of its proper divisors (107393541543).

321111131001 is a wasteful number, since it uses less digits than its factorization.

321111131001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89124471.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 321111131001 its reverse (100131111123), we get a palindrome (421242242124).

The spelling of 321111131001 in words is "three hundred twenty-one billion, one hundred eleven million, one hundred thirty-one thousand, one".